darkcloud | aa653ad0d107b2d7ab98d4ede0eef147b73fbd7eb2f522f0bf608f833daebe34

General

Target

RFQ.exe
Size

881KB
MD5

768bed9843a8a7c96699b27fc40b8819
SHA1

4ae495c3540252bef39276bf6e9fc84435f7b7bb
SHA256

aa653ad0d107b2d7ab98d4ede0eef147b73fbd7eb2f522f0bf608f833daebe34
SHA512

e23d433ac20532c512d2f2db1badbf4a2e43d2c28ff73553e2de79d82a012dbe1afe81d59bc830f4606ff3b54b08cbbcbd2b6448cdb12a3246ffb4607ac93539
SSDEEP

12288:TfNeE6xIVKGJA1R1MbXgf+GH4oGSlhA8b06JJe4Ii3QOeGiTJyxwC1ht2ddT+:wE6xcA1LMbDqXm8b0iJ7r6cxvE

Score

10^/10

darkcloud discovery execution stealer

Malware Config

Extracted

Family

darkcloud

C2

https://api.telegram.org/bot7725030292:AAFHYtQUWDdOhIko2DIqyexjh4XvUaOA1Fs/sendMessage?chat_id=6732456666

Signatures

DarkCloud
An information stealer written in Visual Basic.
stealer darkcloud
Darkcloud family
darkcloud

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2820	powershell.exe
2660	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2392 set thread context of 2000	2392	RFQ.exe	36

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RFQ.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2796	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2820	powershell.exe
2660	powershell.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2000	RFQ.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	powershell.exe
Token: SeDebugPrivilege	2660	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2000	RFQ.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2392 wrote to memory of 2820	2392	RFQ.exe	30
PID 2392 wrote to memory of 2820	2392	RFQ.exe	30
PID 2392 wrote to memory of 2820	2392	RFQ.exe	30
PID 2392 wrote to memory of 2820	2392	RFQ.exe	30
PID 2392 wrote to memory of 2660	2392	RFQ.exe	32
PID 2392 wrote to memory of 2660	2392	RFQ.exe	32
PID 2392 wrote to memory of 2660	2392	RFQ.exe	32
PID 2392 wrote to memory of 2660	2392	RFQ.exe	32
PID 2392 wrote to memory of 2796	2392	RFQ.exe	34
PID 2392 wrote to memory of 2796	2392	RFQ.exe	34
PID 2392 wrote to memory of 2796	2392	RFQ.exe	34
PID 2392 wrote to memory of 2796	2392	RFQ.exe	34
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36
PID 2392 wrote to memory of 2000	2392	RFQ.exe	36

C:\Users\Admin\AppData\Local\Temp\RFQ.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2392
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wOPQRmK.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2660
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wOPQRmK" /XML "C:\Users\Admin\AppData\Local\Temp\tmp90F9.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2796
- C:\Users\Admin\AppData\Local\Temp\RFQ.exe
  "C:\Users\Admin\AppData\Local\Temp\RFQ.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of SetWindowsHookEx
  PID:2000

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp90F9.tmp

Filesize
1KB

MD5
43ad240df69e8512d2ae3b16362c31de

SHA1
65b7834313b48e40e2792bff9a9de0a50484d5d4

SHA256
0705752aef87c370e3fb91cabb12ce8dd04d98cbdf52b4cf3a15c2f40d5b68b6

SHA512
30b46fcaab2284489a2baaf51a8207843241cf21bb00e6f4de086d82476cedb41b928cbde350be1a3640fa5ab9704455f38958efb55466cc0d968236bb5cc8cf

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\0ZYVTHLAT18Q2OG5UQQO.temp

Filesize
7KB

MD5
ed85a864fd9e00506b464a57a50ebd4d

SHA1
5e888e85e2abe9641a04cef2b540b0c0a9ed3be3

SHA256
c790f61bfffd6c70f5de66cd7a3b26134b01695e0dd550945f6c87fec8d9c028

SHA512
de426776683f9e8638df8283f986b8e8b1f2018b2c3a35d3250f072d449cb30059453053d32ed22d845c6ca0d6448cf6ec93218a8f767f0303f8bd05c16d4d09

Download Submit
memory/2000-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2000-21-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2000-19-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2000-23-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2000-29-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2000-28-0x0000000000400000-0x0000000000472000-memory.dmp

Filesize
456KB

Download
memory/2392-6-0x0000000004A80000-0x0000000004B3C000-memory.dmp

Filesize
752KB

Download
memory/2392-1-0x0000000000C60000-0x0000000000D42000-memory.dmp

Filesize
904KB

Download
memory/2392-2-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2392-3-0x0000000000440000-0x0000000000450000-memory.dmp

Filesize
64KB

Download
memory/2392-0-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/2392-5-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download
memory/2392-4-0x000000007442E000-0x000000007442F000-memory.dmp

Filesize
4KB

Download
memory/2392-32-0x0000000074420000-0x0000000074B0E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads